106 Hits in 5.8 sec

PI-Type Controllers and Σ- Modulation for Saturated DC-DC Buck Power Converters

Carlos Aguilar-Ibanez, Javier Moreno-Valenzuela, O. Garcia-Alarcon, M. Martinez-Lopez, Jose Angel Acosta, Miguel S. Suarez-Castanon
2021 IEEE Access  
INDEX TERMS DC-DC buck converter, Lyapunov's method, saturation control, -modulator, experimental results.  ...  A discontinuous control method was applied in [3] and [4] to compensate for disturbances in a buck power converter.  ...  Further research consists in developing PI-type controllers equipped with integrator anti-windup and -modulation for more complex DC-DC power converters such as the boost, buck-boost and SEPIC power converters  ... 
doi:10.1109/access.2021.3054600 fatcat:6tcqmuqrxnhq3mvp3spn7xk5om

Robust Switched Tracking Control for Wheeled Mobile Robots Considering the Actuators and Drivers

José García-Sánchez, Salvador Tavera-Mosqueda, Ramón Silva-Ortigoza, Victor Hernández-Guzmán, Jacobo Sandoval-Gutiérrez, Mariana Marcelino-Aranda, Hind Taud, Magdalena Marciano-Melchor
2018 Sensors  
For this aim, the dynamics of the three subsystems composing a DDWMR, i.e., the mechanical structure (differential drive type), the actuators (DC motors), and the power stage (DC/DC Buck power converters  ...  flatness for the actuators; and the low level is linked to two cascade switched controls based on sliding modes and PI control for the power stage.  ...  DC/DC Buck power converters.  ... 
doi:10.3390/s18124316 fatcat:2a5bs5z5k5cqbpuvurbltxljoq

Fuzzy Second-Order Sliding Mode Control Design for a Two-Cell DC-DC Converter

Hanene Medhaffar, Nabil Derbel
2020 Mathematical Problems in Engineering  
This paper presents a fuzzy second-order sliding mode controller for a two-cell DC-DC converter.  ...  For this aim, a second-order sliding mode controller and a type-2 fuzzy system are combined to achieve an adequate control.  ...  Figure 1 : A two-cell DC-DC buck converter.  ... 
doi:10.1155/2020/1693971 fatcat:ufgaufigbnhr5limdyidudfqtm

Software In-The-Loop Simulation of an Advanced SVM Technique for 2ϕ-Inverter Control Fed a TPIM as Wind Turbine Emulator

Intissar Moussa, Adel Khedher
2022 Electronics  
This work deals with the development of an advanced space vector pulse width modulation (SVM) technique for two-phase inverter control using an XSG library to ensure rapid prototyping of the controller  ...  Thus, space vector modulation (SVM) is more efficient and has its own distinct advantages compared to other pulse width modulation (PWM) techniques.  ...  Torque Speed [24] DCM DC/DC converter Required (PI controller) No observer used dSPACE Speed Current [32] DCM DC/DC buck converter Required (PI controller) No observer used FPGA Speed Current [41] DCM  ... 
doi:10.3390/electronics11020187 fatcat:ymdjz6l7vrgy5ade4cd6ncwofi

Fixed Switching Frequency Digital Sliding-Mode Control of DC-DC Power Supplies Loaded by Constant Power Loads with Inrush Current Limitation Capability

Abdelali El Aroudi, Blanca Martínez-Treviño, Enric Vidal-Idiarte, Angel Cid-Pastor
2019 Energies  
This paper proposes a digital sliding-mode controller for a DC-DC boost converter under constant power-loading conditions.  ...  The analysis shows that unlike with a resistive load, the boost converter under a fixed-frequency digital sliding-mode current control with external voltage loop open and loaded by a constant power load  ...  Introduction Many power systems call for a DC-DC multiconverter approach to provide various power and voltage forms [1] [2] [3] .  ... 
doi:10.3390/en12061055 fatcat:jthggnnsdnebpa6v7txdohzetq

Exploring Cybersecurity Issues in 5G Enabled Electric Vehicle Charging Station with Deep Learning [article]

Manoj Basnet, M. Hasan Ali
2021 arXiv   pre-print
) controller, Battery Energy Storage (BES) controller, and EV controller of the EVCS.  ...  The attacks make the EVCS system oscillate or shift the DC operating point.  ...  The authors would like to thank the University of Memphis for providing Carnegie R1 doctoral fellowship and all required resources to complete this research.  ... 
arXiv:2104.08553v1 fatcat:lk36jgpuincnfdwk5ekhoynbfq

Maximum power point tracking for photovoltaic systems using adaptive extremum seeking control

Xiao Li, Yaoyu Li, John E. Seem, Peng Lei
2011 IEEE Conference on Decision and Control and European Control Conference  
The AESC is used to maximize the power output by tuning the duty ratio of the pulse-width modulator (PWM) of the DC-DC buck converter.  ...  This paper presents the application of the adaptive extremum seeking control (AESC) scheme to the PV MPPT problem. A state-space model is derived for the PV system with buck converter.  ...  The duty ratio D of the pulse-width modulator (PWM) is used to adjust the input voltage of the buck DC-DC converter to achieve MPPT. III.  ... 
doi:10.1109/cdc.2011.6161436 dblp:conf/cdc/LiLSL11 fatcat:xpj45gxoive3dkmg6nat2vqna4

Performance analysis of thermoelectric generator using dc-dc converter with incremental conductance based maximum power point tracking

Ssennoga Twaha, Jie Zhu, Yuying Yan, Bo Li, Kuo Huang
2017 Energy for Sustainable Development  
of a dc-dc converter with 13 maximum power point tracking (MPPT) enabled by incremental conductance (IC) method. 14 The simplified model is used as the basis for TEG design while the dc-dc boost converter  ...  15 is used for boosting and stabilising the power generated from TEG.  ...  (1) 101 Where α p,n is the Seebeck coefficient of n-type or p-type material; σ p,n is the electrical 102 conductivity of the material in p-type or n-type in Siemens per meter;  , is the thermal 103  ... 
doi:10.1016/j.esd.2017.01.003 fatcat:6yesxuzbynh7fcnyqbvjiwvale

Performance enhancement of powertrain DC–DC converter using variable inductor

Mebrahtom W. Beraki, João Pedro F. Trovão, Marina S. Perdigão
2021 IET Electrical Systems in Transportation  
Performance enhancement of a powertrain DC-DC converter is provided using a current-controlled magnetic device, the variable inductor (VI).  ...  To regulate the saturation level of the magnetic core and avoid postsaturation operation of the power inductor, an appropriate level of auxiliary winding current is needed.  ...  A power inductor designed to meet the requirements of a powertrain DC-DC converter for a three- ðVs max −Vout min ÞDmax ΔiLf sw C dc V dc Dmax RΔvoutf sw ð1−Dmin Þ 8LΔvoutf sw wheeled recreational vehicle  ... 
doi:10.1049/els2.12014 fatcat:3fzxcm5kxzeena5acxnkwmm4nq

Damping Optimum-Based Design of Control Strategy Suitable for Battery/Ultracapacitor Electric Vehicles

Danijel Pavković, Mihael Cipek, Zdenko Kljaić, Tomislav Mlinarić, Mario Hrgetić, Davor Zorc
2018 Energies  
The control strategy features an upper-level DC bus voltage feedback controller and a direct load compensator for stiff tracking of variable (speed-dependent) voltage target.  ...  The feedback control system is designed and analytical expressions for feedback controller parameters are obtained by using the damping optimum criterion.  ...  DC/DC power converter for buck operation (a) and boost operation (b).  ... 
doi:10.3390/en11102854 fatcat:5fhwlak4dbao7hmb6kfh4mjfte

Robust DC-Link Control in EVs With Multiple Energy Storage Systems

Ricardo de Castro, Rui Esteves Araujo, João Pedro F. Trovao, Paulo G. Pereirinha, Pedro Melo, Diamantino Freitas
2012 IEEE Transactions on Vehicular Technology  
current (dc) bus through two bidirectional dc-dc converters (step-up).  ...  The dc-link controller is then posed as a robust linear-quadratic regulator problem and, by exploring the convex polytope, converted in a linear matrix inequalities framework, which can efficiently be  ...  Miranda for his help in setting up the power converter of the experimental test bench.  ... 
doi:10.1109/tvt.2012.2208772 fatcat:hug3ccmsobc5loz4pfadcl57ri

Two-layer nonlinear control of DC-DC buck converters with meshed network topology [article]

Pablo R. Baldivieso-Monasterios, Mahdieh Sadabadi, George C. Konstantopoulos
2021 arXiv   pre-print
We demonstrate our results in a meshed topology network containing 6 power converters, each converter feeding an individual constant power load with values chaning arbitrarily within a pre-specified range  ...  In this paper, we analyse the behaviour of a buck converter network that contains arbitrary, up to mild regularity assumptions, loads.  ...  Preliminaries Modelling of DC-DC buck converters Consider M DC-DC buck converters connected through M E power lines.  ... 
arXiv:2112.13385v1 fatcat:jtbn664bl5ejpgirxodtcpgpae

Computationally Efficient Distributed Predictive Controller for Cascaded Multilevel Impedance Source Inverter with LVRT Capability

Mitchell Easley, Sarthak Jain, Mohammad B. Shadmand, Haitham Abu-Rub
2019 IEEE Access  
For photovoltaic (PV) applications, the proposed control scheme is based on an enhanced finite-set model predictive control (MPC) to harvest the desired active power from the PV modules with the ability  ...  This paper presents a decoupled active and reactive power control scheme for grid-tied quasi-impedance source cascaded multilevel inverter (qZS-CMI).  ...  The reduction in power to the grid causes a sag in DC link voltage, and the PI controller responds by reducing i d,ref .  ... 
doi:10.1109/access.2019.2904392 fatcat:bsqrhdztd5fyhodejc3q6ugaxq

Adaptive Neural Network-Based Control of a Hybrid AC/DC Microgrid

Nadjwa Chettibi, Adel Mellit, Giorgio Sulligoi, Alessandro Massi Pavan
2016 IEEE Transactions on Smart Grid  
Her research interests include renewable energy sources, hybrid microgrids, intelligent control and power converters.  ...  Adaptive Neural Networks are used to track the Maximum Power Point of renewable energy generators and to control the power exchanged between the Front-End Converter and the electrical grid.  ...  A bidirectional buck-boost converter interfaces the BESS with the DC link. Whereas, boost converters are used for coupling the PV source and SOFC with the DC-bus.  ... 
doi:10.1109/tsg.2016.2597006 fatcat:ptbjddvt3bg6ta34trl64kb32q

Takagi–Sugeno State Delayed Feedback and Integral Control for PV Systems: Modeling, Simulation, and Control

Hicham El Aiss, Karina A. Barbosa, Hector Chavez, Carlos Rodriguez, Laurentiu Fara
2021 International Journal of Photoenergy  
However, current maximum power point tracking (MPPT) algorithms are generally complex and require electronic components to support variable control gains for different irradiance conditions, preventing  ...  This paper proposes a new control strategy to tackle the power tracking problem of the power systems.  ...  Acknowledgments This work has been supported by "Fondo Nacional de Desarrollo Científico y Tecnológico"-Fondecyt, Chile, under grants 3190378 and 1191302.  ... 
doi:10.1155/2021/7552200 fatcat:7pn4rh536ndd7kw6gcc7rwdjpi
« Previous Showing results 1 — 15 out of 106 results